<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<%@ taglib prefix="s" uri="/struts-tags"%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<form action="Subject.action">
<s:combobox list="#request.DicProfessionalCode" id="dic" 
 size="20" maxLength="20" name="DicProfessionalCode" cssStyle="display:none" headerKey="0" readonly="true" headerValue="--请选择学科--" />
 <input type="button" value="查询" />
 <input type="button" value="添加" />
 <input type="button" value="删除" />

</form>
</body>
</html>